Space Mountain (Fl), but if you want to know my first "real" coaster it was Dueling Dragons when it opened in 99, when I was about 9 years old. Soon after, I began looking at this site and became an enthusiast when I was 10 or so. But the amazing thing about being obsessed at ten, was that most people who are at that age are influenced by their parents or family, but not me, I'm the only person who will ride a coaster in my family (which is why I get to go to Orlando often, but rarely anywhere else) In fact the last time I was at a non-orlando park was right when nitro came out at GAdv. I'm really off topic now. So my first "real" coaster was Dueling Dragons (Fire), which is a modern coaster, but I would consider it a modern classic.
Defeat the Enemy. Vote for Kerry in 2004!